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Cryptography Talk

Attention: Don’t buy wallet.dat files (Here’s why)

Today I had someone contact me asking me for help in recovering a wallet he had purchased. Long story short, he was scammed out of a lot of money, to buy this wallet. He actually had the private key, but he was unable to spend from it. He got the following error when trying to…Continue readingAttention: Don’t buy wallet.dat files (Here’s why)

Categories
Cryptography Talk

ECDSA and Schnorr signatures from the same private key

It has been warned that you should not use the same private key to generate both ECDSA signatures and Schnorr signatures. That is because there may be a method for people to extract secret data when the two of them are combined. While there isn’t a confirmed attack that uses this method, as is the…Continue readingECDSA and Schnorr signatures from the same private key

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